Can You Identify The Covalent And Ionic Bonds? Quiz

Explanation
The correct answer is ionic because CaO is formed by the combination of a metal (calcium) and a non-metal (oxygen). Ionic compounds are composed of positive and negative ions held together by electrostatic forces, and in CaO, calcium loses two electrons to form a Ca2+ ion, while oxygen gains two electrons to form an O2- ion. The strong attraction between these oppositely charged ions results in the formation of an ionic bond.

Explanation
SO2 refers to sulfur dioxide, which is a compound composed of sulfur and oxygen atoms. In this compound, the sulfur atom forms a covalent bond with two oxygen atoms. Covalent bonds involve the sharing of electrons between atoms, and in the case of SO2, the electrons are shared between sulfur and oxygen atoms. Therefore, the correct answer is covalent.

Explanation
HNO3 is an ionic compound because it is composed of a metal (H) and a non-metal (NO3). Ionic compounds are formed when electrons are transferred from one atom to another, resulting in the formation of positive and negative ions. In the case of HNO3, the hydrogen atom loses an electron to become a positive ion (H+), while the nitrate ion (NO3) gains the electron to become a negative ion (NO3-). The attraction between these oppositely charged ions results in the formation of an ionic compound.

Explanation
Ca3N2 is an ionic compound. This is because it is formed by the combination of a metal, calcium (Ca), and a non-metal, nitrogen (N). In ionic compounds, electrons are transferred from the metal to the non-metal, resulting in the formation of positively charged ions (cations) and negatively charged ions (anions). In the case of Ca3N2, calcium loses 3 electrons to form Ca2+ ions, while nitrogen gains 3 electrons to form N3- ions. These ions are held together by strong electrostatic forces, resulting in the formation of an ionic compound.

Explanation
NO2 refers to nitrogen dioxide, which is a covalent compound. Covalent compounds are formed when two or more nonmetals share electrons to achieve a stable electron configuration. In the case of NO2, nitrogen (a nonmetal) shares electrons with two oxygen atoms to form covalent bonds. Ionic compounds, on the other hand, are formed when a metal and a nonmetal transfer electrons to each other. Since NO2 consists of only nonmetals, it is classified as a covalent compound.